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Site Report: Era Aviation Inc

Site Name: Era Aviation Inc
Address: 6160 Carl Brady Dr., Anchorage, AK 99503
File Number: 2100.26.036.21
Hazard ID: 23289
Status: Cleanup Complete - Institutional Controls
Staff: IC Unit, 9074655229 dec.icunit@alaska.gov
Latitude: 61.164783
Longitude: -149.978688
Horizontal Datum:

We make every effort to ensure the data presented here is accurate based on the best available information currently on file with DEC. It is therefore subject to change as new information becomes available. We recommend contacting the assigned project staff prior to making decisions based on this information.

Problems/Comments

During investigations in 1997 and 1998, soil contaminated with diesel range organics (diesel), gasoline range organics (GRO), and benzene was found to be associated with eleven underground storage tanks (UST) and a fuel distribution system that included two remote fueling dispensers and a pump house. The tanks were: • 5,000-gallon gasoline tank (motor vehicle fuel), • 1,000-gallon diesel emergency generator tank, • 500-gallon waste oil tank, • 12,000-gallon Jet A/B fuel tank, • Three 15,000-gallon Jet A/B fuel tanks, and • Four 28,000-gallon Jet A/B fuel tanks.

Action Information

Action Date Action Description DEC Staff
1/6/1998 Leaking Underground Storage Tank Release Confirmed - Petroleum LUST Site created in CSP for source area ID 77799 Letter from Chris Hawe (Gilfilian) dated 1/6/98 reporting release which was discovered during a subsurface soil investigation conducted during Nov. 97. Borings were drilled for design of cathodic protection system. Former Staff
1/6/1998 Site Added to Database Former Staff
7/1/1998 Release Investigation Upgrade of 8 onsite USTs and installation of CP for tanks. Investigation of piping & remote fuel dispensers by Gilfilian. Contamination discovered. Former Staff
9/1/1998 Leaking Underground Storage Tank Cleanup Initiated - Petroleum Removal of three USTs, one with waste oil, one with motor vehicle gasoline, and one with diesel. Petroleum contaminated soil was encountered and stockpiled in a treatment cell. See SA report dated 12/15/98. Former Staff
6/30/1999 Underground Storage Tank Site Characterization or Assessment 12/98 Site Assessment Report review. Former Staff
8/11/1999 Update or Other Action Corrective Action Work Plan submitted to DEC. Former Staff
9/28/1999 Update or Other Action Conditional Approval for CAP Former Staff
2/15/2000 Update or Other Action ADEC sent letter responding to 1/20/00 letter by Gilfilian. ADEC requests that assessment of pipeline. See letter for details. Linda Nuechterlein
5/30/2000 Update or Other Action Gilfilian requests that AK Board of Storage Tank Assistance hear an appeal concerning DEC decision on closure of ERA fuel pipeline. Linda Nuechterlein
6/16/2000 Leaking Underground Storage Tank Corrective Action Underway Conditional approval of Landfarm workplan. See letter dated 6/16/00 for details. Linda Nuechterlein
6/23/2000 Update or Other Action Jim Hayden sends letter to Gilfilian in response to board appeal request which disallows appeal. Linda Nuechterlein
7/24/2000 Leaking Underground Storage Tank Corrective Action Underway Landfarming of two petroleum stockpiles, 350 cubic yards from 1998 eight tank upgrade and 200 cubic yards from another contaminated site at Hangar #3. Linda Nuechterlein
11/8/2000 Update or Other Action ADEC letter to Gilfilian requesting that sampling plan be submitted prior to final soil confirmation sampling. Linda Nuechterlein
12/16/2002 Underground Storage Tank Site Characterization or Assessment Reviewed limited release investigation conducted on April 2002. Report documents high levels of contamination remaining. DEC letter looking for RIWP to complete RI work. Robert Weimer
3/7/2003 Update or Other Action Site transferred to Bush Robert Weimer
11/3/2003 Update or Other Action ADEC Project Manager transferred from Bush to Blessing Todd Blessing
9/17/2004 Update or Other Action Letter was submitted to responsible party requesting update on pipeline characterization, AS/SVE system and groundwater monitoring. Todd Blessing
7/11/2005 Update or Other Action Letter dated June 9, 2005 which discussed the site status was reviewed. Approval was granted for an extension of deadline to characterize pipeline. Todd Blessing
8/21/2006 Update or Other Action File number issued 2100.26.036.21 (FKA L67.49). Aggie Blandford
4/3/2007 Exposure Tracking Model Ranking Initial ranking Todd Blessing
7/3/2007 Institutional Control Record Established In accordance with 18 AAC 75.350, ADEC has determined that the unconfined groundwater (above the Bootlegger Cove Formation) at the Anchorage International Airport (AIA) is not a current or future drinking water source. This determination is subject to the following conditions: 1. It applies only within the Airside and Commercial RMZ’s, as described in the Airport-Wide Remediation Management Plan. It does not apply within the Ecological RMZ. 2. It does not establish alternative cleanup levels within those zones but allows ADEC to use the determination in making decisions in accordance with 18 AAC 75.345(b)(2) - (3). 3. Any drinking water wells located on AIA property must be properly abandoned in accordance with ADEC decommissioning procedures within two years of this decision. 4. AIA shall prohibit the installation of any water wells, used for drinking, cooling, washdown, or any other purposes, on the AIA either through 17 AAC 42.410 (b) (27) of the airport leasing regulations or in their individual lease agreement documents. 5. The existing AIA water well used to maintain the water level in Lake Hood is not considered a drinking water well. However, AIA is responsible for determining its wellhead protection area and ensuring that it maintains levels at or below 18 AAC 75.345 Table C values, unless otherwise approved by ADEC. March 19, 2007 Amendment: DEC has determined that the shallow groundwater along the Lake Hood shoreline is not a current or future drinking water source in accordance with 18 AAC 75.350. Therefore, the March 2001 groundwater use determination is amended to include the shallow groundwater in the Ecological RMZ in that determination. ERA Aviation still operates the last two drinking water wells in the South Airpark, TSAIA has requested that the groundwater use determination not apply to South Airpark until the two drinking water wells are decommissioned. Colleen Deal
5/30/2010 Update or Other Action Drinking water well at the site was decommissioned. Lisa Krebs-Barsis
5/30/2011 Update or Other Action The last drinking water well in the South Airpark was decommissioned. The groundwater use determination is reapplied to the South Airpark part of the ANC. Lisa Krebs-Barsis
1/4/2012 Update or Other Action DEC staff discussed the status of this site with Alaska Department of Transportation and Public Facilities (ADOT&PF). Staff notified ADOT&PF that the responsible party has been unresponsive to DEC's requests for further evaluation of the nature and extent of contamination. Todd Blessing
11/20/2012 Update or Other Action Staff reviewed and approved of a closure assessment work plan prepared by Oasis and dated November 5, 2012. Approximately 21 boreholes will be advanced near the abondoned pipeline and soil samples will be collected from each borehole. Soil samples will be analyzed for contaminants of concern and boreholes will be abondoned by backfilling the holes with soil cuttings or bentoniite chips. Todd Blessing
9/22/2014 Document, Report, or Work plan Review - other ADEC approved a work plan modification request on this date. The field work will begin September 29. A vacuum truck or air knife will be used to excavate borings to 5' below ground surface. Samples will be collected a minimum of 18" below the bottom of the excavation using a hand auger to collect representative samples. Meghan Dooley
1/22/2015 Document, Report, or Work plan Review - other Twenty-one borings were advanced to investigate the 700 feet of piping of the fuel distribution system in accordance with an approved work plan. Two of the borings were advanced in the two fuel dispenser sumps. Samples were analyzed for residual range organics, diesel range organics, gasoline range organics, benzene, toluene, ethylbenzene, total xylenes, and lead. Four of the boring samples were analyzed for polycyclic aromatic hydrocarbons. None of the analytes were detected above applicable cleanup levels, except at the two fuel dispenser sumps. Concentrations of samples collected during events since 1998 show decrease in concentrations. Lisa Krebs-Barsis
1/29/2015 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 77799 Jet Fuel Spills. Lisa Krebs-Barsis
3/24/2015 Cleanup Complete Determination Issued Contamination remains on site above established cleanup levels, however, the ADEC has determined there is no unacceptable risk to human health or the environment. Diesel range organics (DRO) remains on site near fuel dispenser sump 2 at 6,980 mg/Kg. Lisa Krebs-Barsis
11/16/2015 Institutional Control Compliance Review IC compliance review conducted, staff name changed from Krebs-Barsis to IC Unit, and set the reminder system to review the site record February 2020. Nathan Maxwell
8/17/2020 Institutional Control Compliance Review IC Reminder sent on this date. Site is under a 5-year compliance review period for a GW use restriction with a 350 determination. Cascade Galasso-Irish

Contaminant Information

Name Level Description Media Comments
DRO Other SoilGroundwater
GRO Other SoilGroundwater
BTEX Other SoilGroundwater

Control Type

Type Details
Other Commercial and Airside Remediation Management Zones as well as the Lake Hood shoreline are not a present or future drinking water source.

Requirements

Description Details
Groundwater Use Restrictions Any drinking water wells located on AIA property must be properly abandoned in accordance with ADEC decommissioning procedures within two years of this decision. AIA shall prohibit the installation of any water wells, used for drinking, cooling, washdown, or any other purposes, on the AIA either through 17 AAC 42.410 (b) (27) of the airport leasing regulations or in their individual lease agreement documents.
Movement or use of contaminated material (including on site) in a manner that results in a violation of the water quality standards is prohibited (18 AAC 70) Standard condition.
Advance approval required to transport soil or groundwater off-site. Standard condition.
Other Notification of change in land use and ownership required.

No associated sites were found.

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State of Alaska Department of Environmental Conservation

P.O. Box 111800
Juneau, AK 99811-1800
Phone: 907-465-5066
Fax: 907-465-5245
TDD: 800-770-8973
Physical Location: 410 Willoughby